| Acronym | Meaning |
 | COP | Colombian Peso (ISO 4217 Currency Code) -Common Operating/Operational Picture |
| MO | Moldovan Language (ISO 639-1 Code) |
| OBS | Observation/Observer - Obsolete - Obstacle -Off Balance Sheet - Optical Burst Switching (IEEE) - Organic Brain Syndrome - Organization(al) Breakdown Structure |
| EU | Basque Language (ISO 639-1 Code) |
| XAF | BEAC (Banque Des ?tats De L'Afrique Centrale) Central Africa CFA (Coop?ration Financi?re En Afrique Centrale) Franc (ISO 4217 Currency Code) |
| TADL | Tactical Air Data Link (taddle) |
| KS | Kilosiemens |
| ML | Millilitre |
| ITER | International Thermonuclear Experimental Reactor |
| OLS | Operational Linescan System |
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